[Relations between magnesium, erythrocyte zinc and HL-A groups].

Red blood cell and plasma magnesium and zinc levels and plasma calcium concentrations have been determined in 84 unrelated male subjects, with known HLA groups. When the subjects are classified according to their HLA--B groups, significant variations are observed for red blood cell magnesium and zinc concentrations, while no important variation is observed for HLA--A groups. These results confirm the importance of genetic factors in the regulation of Mg and Zn red blood cell concentrations.